[Chore] Composer 2 support (#963)

* chore: update grumphp

* chore: allow composer 2 packages

composer.json

@@ -22,7 +22,7 @@
     "require": {
         "php": ">=7.2",
         "barryvdh/reflection-docblock": "^2.0.6",
-        "composer/composer": "^1.6",
+        "composer/composer": "^1.6 || ^2.0@dev",
         "doctrine/dbal": "~2.3",
         "illuminate/console": "^5.5 || ^6 || ^7",
         "illuminate/filesystem": "^5.5 || ^6 || ^7",
@@ -34,7 +34,7 @@
         "illuminate/view": "^5.5 || ^6 || ^7",
         "mockery/mockery": "^1.3",
         "orchestra/testbench": "^3 || ^4 || ^5",
-        "phpro/grumphp": "^0.17.1",
+        "phpro/grumphp": "^0.19.0",
         "squizlabs/php_codesniffer": "^3.5",
         "vimeo/psalm": "^3.12"
     },